<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="lib/bootstrap-3.3.7-dist/css/bootstrap.css">
    <style>
        .product{
            width: 200px;
            height: 50px;
            background: green;
            border-radius: 16px 0 16px 0;
            line-height: 50px;
            text-align: center;
            color: #fff;
        }
        img{
            width: 100%;
            height: 100%;
        }
        [class^="col"]{
            margin-top: 20px;
        }
    </style>
</head>
<body>
        <div class="container">
            <div class="product">产品展示</div>
            <div class="row">
                <div class="col-md-4 col-sm-6"><img src="images/item01.jpg" alt=""></div>
                <div class="col-md-4 col-sm-6"><img src="images/item01.jpg" alt=""></div>
                <div class="col-md-4 col-sm-6"><img src="images/item01.jpg" alt=""></div>
                <div class="col-md-4 col-sm-6"><img src="images/item01.jpg" alt=""></div>
                <div class="col-md-4 col-sm-6"><img src="images/item01.jpg" alt=""></div>
                <div class="col-md-4 col-sm-6"><img src="images/item01.jpg" alt=""></div>
            </div>
        </div>
     <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
     <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
     <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
     <script src="lib/bootstrap-3.3.7-dist/js/bootstrap.js"></script>
</body>
</html>